WO2011012683A2

WO2011012683A2 - Housing for a wind turbine

Info

Publication number: WO2011012683A2
Application number: PCT/EP2010/061055
Authority: WO
Inventors: Dror Avner
Original assignee: Suzlon Energy Gmbh
Priority date: 2009-07-29
Filing date: 2010-07-29
Publication date: 2011-02-03
Also published as: WO2011012664A3; DE102009035248A1; DE102009035248B4; WO2011012683A3; EP2459874A2; WO2011012664A2

Abstract

The invention relates to a housing, especially for using as a spinner for a rotor of a wind turbine. A housing element having an outer surface and an inner surface has an opening to enable access into the housing. A mobile opening element having an outer side and an inner side is provided on the opening, embodied as a door, and a connecting element for coupling the opening element to the housing is applied inside the housing. The aim of the invention is to further develop an extensively improved housing for a spinner of a wind turbine. To this end, inter alia, the assembly is simplified, and the design in terms of the shape of the housing and the material characteristics protects the inside of the turbine and renders the turbine, on the whole, less vulnerable to extreme weather conditions.

Description

Housing for a wind turbine

The present invention relates to a housing, in particular for use as a spinner for a rotor of a wind turbine, wherein a housing member having an outer surface and an inner surface having an opening to enter the interior of the housing. At the opening a movable opening member is provided with an outer side and an inner side, which is formed as a door.

Similar housings for wind turbines are basically known from the prior art and are used in existing wind turbines. Such housings often also have an opening in the form of a door or manhole to access the interior of the wind turbine housing. However, the wind turbine housing types available on the market show some drawbacks due primarily to their design. A major disadvantageous aspect that can be observed in the common types of housing, on the one hand in the type of articulation of the door or access hatch to the associated housing and the other in the corresponding locking device of the door with the housing body. So far, the articulation of the door to the housing via appropriate hinge hinges, which are unfavorably mounted on the wall of the turbine housing with respect to the assembly, production and functionality. Likewise, locking members that form the locking device to lock the wind turbine housing door are unfavorably mounted to the wall of the housing. Another disadvantage is that the usually mechanical components due to the location of the wind turbine are exposed to the often extreme weather conditions unprotected and, for example due to temperature fluctuations, corrosion, lightning or moisture, there is a risk of permanently damaging the material or at least its Operational impairment and in this way the maintenance of the housing is increased. A corresponding maintenance by, for example, a simple replacement of these components is due to the extreme dimensions of a wind turbine therefore usually only be achieved with a large technical and associated financial expense.

Another aspect that arises in turbine housings is the requirement for the most complete possible sealing of the housing against the ingress of liquids such as water or moisture. Critical areas on the turbine housing are in particular at the transition and interfaces between the door and the housing wall of the housing element to make it to prevent ingress of liquid and / or moisture into the housing interior or at least reduce, it is therefore necessary, the door with to press a corresponding pressure to the housing element. In the known housings, this contact pressure is achieved by at least one or two locking devices mounted separately on the housing element. A disadvantage of these embodiments is that the separate locking devices must also be brought individually into a corresponding locking or unlocking position, which can often only be done manually in a wind turbine. Furthermore, due to the requirement for housing stability and strength, the functional and constructive expandability of the housing, the previously known housings for wind turbines are subject to narrow limits, which are largely determined by the design specifications.

On the basis of the described problem, the present invention has the object of developing a housing for a wind turbine, which avoids, among other things, the disadvantages of the prior art. In particular, a fully and holistically improved housing for a spinner of a wind turbine to be specified, among other things, the assembly is to be simplified, the design of the housing shape and the Material properties protects the interior of the turbine and overall makes the turbine less vulnerable to extreme weather conditions. In addition to easier access to the interior of the housing more room for an expandability of the housing is also available despite predetermined design limits are available, so that the housing can be adapted to the particular requirements of the installed wind turbine. Of particular importance is to provide the geometry and / or arrangement of the components or components, on the one hand for the necessary stability and strength of the housing or its components, but at the same time also other options for flexible design of the use, in particular their arrangement on or in the enclosure, to provide the available components for different deployment scenarios, even after the wind turbine has already been installed.

This object is solved by the features of claim 1, wherein the housing, in particular for use as a spinner for a wind turbine, a housing element having an outer and an inner surface and an opening, having a door formed as opening element, and wherein a connecting element to Linkage of the opening element is mounted inside the housing. In this case, the housing has a hinge arrangement, which is mounted between the housing and door, so that the door is located opposite the housing opening in a substantially parallel to the axis of rotation of the wind turbine, so that the door is not exposed to the direct Windandruckrichtung when the wind turbine turned into the wind. This structural design allows easy opening of the housing door, without being burdened by the wind pressure. In addition, therefore, the door can not be accidentally closed by excessive wind pressure.

In addition, the connecting element of the housing may be designed as a hinge joint and attached to an inner side of the opening element and to an inner side of the housing element. Due to the hidden position of the - A -

Joint hinge can be prevented that the components for the hinge joint - as usual - unprotected and permanently exposed to the weather conditions such as heat, cold, water or lightning. The latent risk of possible corrosion is also reduced in this way. An essential point of the invention is to provide a housing for a wind turbine available, so that its ergonomic and functional design and simple construction with respect to the outer and inner shape and component design, this not only easier and cheaper to produce, but while at the same time providing the foundation for essential and critical factors such as increased stability, safety, water impermeability and component-specific expandability on and to the housing after installation on the wind turbine plant.

In a first embodiment of the invention, a locking system is provided which locks or unlocks the opening element of the housing by activation with respect to the possibility of opening. On the one hand, the locking system can generate the necessary contact pressure of the opening element or the door on the housing itself in order to prevent the penetration of liquid and / or moisture. However, the locking system also allows for protection against unauthorized persons who may want to get inside the turbine. It also prevents the enclosure door from being automatically opened unintentionally in the event of violent gusts of wind and water penetrating into the interior of the housing, or the rotors coming into contact with the enclosure door during operation and causing severe damage to the installation itself.

A further advantageous embodiment provides that on the inside of the door a sealing device is mounted, which closes in the closed position position of the door with an edge of the housing opening, so that the housing interior is protected against external penetration of liquid and / or moisture. The sealing device can be made of an elastic and / or absorptive material or material parts, such as a rubber or foam-like casing, or a combination thereof, which forms a natural protective barrier in the event of penetration of liquid such as water, oil or moisture by its absorption and absorbency. Since such materials wear out over the course of time, it would be conceivable to install the sealing materials in such a way that they can be exchanged easily and quickly and without the great use of additional tools, without major additional structural measures on the housing door, or in the case of that the sealing device is attached to the housing itself - would be necessary.

An advantageous embodiment of the housing is, if it preferably consists of component-like or similar, components that are modularly assembled into a housing unit. This allows for a cost-effective and time-saving production and fast installation at the installation of different housing types that are delivered to different customers and sometimes have to meet completely different requirements. A housing, which is also composed of a few large and mostly standardized items, also has the advantage that these components are very easy to transport, even in very impassable areas that would otherwise be passable only with heavy means of transport. Similarly, an exchange of parts during maintenance is relatively easy to do and makes expensive special custom made unnecessary. However, the replacement of a component allows us to respond to customer needs separately and to integrate components into the housing that take into account the prevailing conditions at the installation site. In this way, additional functionalities can be built into the housing without having to replace the entire housing, which would be a much more expensive alternative. A further embodiment of the solution according to the invention is that the shape of the door of the housing is designed such that it covers with a portion of the outer surface of the housing and / or enters into a positive connection in the closed state. In this way, penetration of liquid and / or moisture at an interface between the housing surface and the door can be prevented or at least minimized and a virtually complete water-tightness of the housing can be achieved. Another advantage is that the door shape adapts to the housing shape and the overall system of door and housing has an optimal aerodynamic design.

In the context of the invention, a hinge arrangement for the housing is disclosed, in particular for fastening a door to the housing. This has a first hinge part, which is connected to an inside of the housing, and a second, fixed to the inside of the door hinge part, wherein both hinge parts by a forced alignment with each other in such interaction that upon pivoting of both hinge parts about a rotation axis AB, a first pivotal position of the door is achieved, which corresponds to a closed state of the housing, or a second pivotal position of the door can be achieved, which corresponds to an open state of the housing. Such an embodiment of the hinge arrangement has the advantage that it arrives with a minimum of components, which reduces the manufacturing costs. On the other hand, despite the freedom of movement of the door for the required stability and strength, which is particularly necessary when the door is open in wind-rich environment. Likewise, it is advantageous to mount the hinge assembly inside the housing, so that the connection is exposed for as short a time as possible to the extreme external weather conditions. Likewise, it would of course be conceivable to provide the hinge connection with a corresponding protective sheath to the mechanical and / or electronic, hydraulic connection means for connecting the To protect hinge parts or for their attachment to the respective housing section.

A further preferred embodiment of the hinge arrangement is that it has a movement stopper. This movement stopper can be brought from a first position to a second position when the pivoting position of the door is open and can engage such that the latching force of the movement stopper can not be overcome if the movement stopper is in the locked position, so that the pivoting positions of the door are fixed in position by the latching and the closing of the

Door is prevented in a closed position when installation work to be performed on the system.

The latching mechanism can also be automatically triggered manually or with correspondingly integrated device and with the skilled person known means, so that the movement of the door is locked when it is opened by a person. The invention further discloses a locking system for a door in a housing of a wind turbine, which essentially consists of a movable locking pin, which is preferably mounted on the inside of the door. The position of the locking pin via a switching device is adjustable so that it can be brought into a first position A, which is called Entsicherungsposition and in which the door can be moved or that the locking pin can be moved to a second position B, as the closing position is referred to, in which the door can not be moved and the housing is not accessible from the outside.

In another advantageous embodiment of the solution according to the invention, the locking system for the door in the housing of the wind turbine in

Essentially from a movable locking pin. This is preferably mounted on the inside of the door, wherein the position of the locking pin via a Switching device is adjustable so that it can be brought into a first position A, which is called Entsicherungsposition and in which the door can be moved, or that the locking pin can be moved to a second position B, which is referred to as the closure position, wherein the Door can not be moved and the housing is not accessible from the outside. The integration of the locking pin on the inside of the door has the advantage that this locking system is not continuously exposed to the outside weather conditions and you can easily minimize the risk of maintenance when using mechanical, electronic and / or hydraulic components. The switching device for changing the position of the locking pin can be advantageously designed as a simple lever handle assembly on the outside of the door. Conceivable, however, would be arrangements which allow a change in the movement of the locking pin in an electronic and / or radio-controlled manner. However, the locking pin itself is not limited to a single component element. This may also consist of a plurality of locking pins, which, as well as a single locking pin, at a corresponding triggering for a closure position, a connection with at least one part, preferably a wall portion of the housing, received. In a further advantageous embodiment of the invention, the housing has at least one holding device, which is designed as a handle bar, which is preferably partially sectionally mounted on the outer surface of the housing to facilitate access to the housing entrance and that for the attachment of the handle bar on the surface the housing formed as a support structure fastening means are provided, which are so in operative engagement with the inner surface of the housing, so that are supported by the support structure, the handle bar on the outer surface of the housing, and the housing of the turbine hub. In this way, a simple support system is installed on the housing, which gives the existing components a variety of functionalities and manages with a minimum of components, which ultimately has a cost-saving effect on the housing construction. The handle bar itself can also be changed in terms of their position, so that a flexible embodiment of the access to the housing is possible. It is also possible to replace individual grips without changing the support system itself.

As fastening means for the handle bar on the housing surface are preferably screw, adhesive or welded joints or a combination thereof in question. Likewise, however, latching and snap connections are conceivable, which allow easy replacement of the bracket, but nevertheless ensure the necessary stability.

In a particularly preferred manner, it is provided that the solution according to the invention provides a sealing device at at least one interface between a rotor blade of a wind turbine and the housing. This sealing device consists of at least a first and second and preferably superimposed shroud rings, which are each formed as outer, preferably cylindrically shaped shroud rings and enclose the seam as a collecting reservoir for accumulated liquid. In this way it can be ensured in a simple and cost-effective manner that during the rotation of the rotor blade, the accumulated liquid is collected by the casing ring which is closer to the seam in each case. An extension of existing wind turbine systems with a corresponding sealing device is possible at any time. Likewise, the shroud rings are designed so that a simple replacement is possible.

In a particularly preferred manner, it is provided that the first and / or second sheathing ring of the sealing device has a cross-sectional area which widens outward and slopes down at an angle in the form of a protruding one Sealing skirt has. Because of this shape, this is advantageously suitable for collecting accumulated liquid and / or allowing it to flow off, so that penetration of liquid into the interior of the housing is prevented or at least minimized at the interface of the rotor blade. Embodiments of the housing according to the invention for use as a spinner for a wind turbine are explained in more detail below with reference to a drawing:

Show it:

Fig. 1 shows a first embodiment of the invention of a housing a

Wind turbine;

Figure 2 shows a detail of the first embodiment of the invention according to Figure 1 with the door open with handle and sealing device ..;

Fig. 3 shows a detail of the door and an embodiment of a

Locking mechanism; 4 shows an embodiment of a hinge joint connection;

Fig. 5 shows an embodiment of a hinge joint connection with a

Movement stopper in detent position;

Fig. 6 shows an embodiment of a trained as a support system

Fastener on the inside of the housing; Fig. 7 is a detail of the support system of Fig. 6;

Fig. 8 shows an embodiment of the support system of FIG. 7 with

Handlebar operations;

9 shows an embodiment of the housing with sealing device; FIG. 10 shows a detailed view of a sheathing ring with closure device of the sealing device of FIG. 9; FIG.

Fig. 11 shows an embodiment of the housing of the wind turbine with

Sealing device and closure elements. Fig. 1 shows a first embodiment of the invention of a housing of a wind turbine. The housing 1 is in modular construction composed of component-like or similar components, consists essentially in the embodiment shown of a total of three housing elements 2. Each of these housing elements 2 with an outer surface 3 and an inner surface 4, not shown here, has an opening. 5 in the form of a movable opening element 6, which allows access to the interior of the housing 1. The opening element 6 of each housing element 2 has on its outer side 7 a lever arrangement 21, which is formed in this embodiment as a door handle and is part of an opening and closing mechanism, not shown here, for the opening element 6 as a door. On the outer surface 3 of the housing 1 and in the vicinity of the opening element 6 of each housing element 2 are each handle 24. These ensure the necessary support as a support aid when entering the housing interior. Each housing element 2 has an interface 31 which is located between the attachment of the rotor blade 28 indicated in FIG. 1 and the housing 1. Directly on or in the immediate vicinity of the seam 31, a sealing device 27 is mounted, which is composed of at least two superimposed casing rings 33, 34, each with a sealing skirt 35. The sealing device 27 is preferably designed to catch liquid and to prevent it from collecting in particular at the junction 31 of the wind turbine and seeping into and penetrating into the interior of the housing. The modular housing structure with component-like or similar housing elements 2 makes it easier to exchange parts of the housing 1 quickly and allows a separate delivery of Housing components, which can then be assembled only when required at the installation site to a complete spinner of the turbine housing.

Fig. 2 shows a detail of the first embodiment of the invention according to Fig. 1 with the door open 6 with handle bar 24 and sealing device 27 of a housing element 2 of the housing 1. As shown in Fig. 2, the door 6 has an inner side 8, at the one Locking system 10 is mounted, which is formed in the illustrated embodiment as a movable locking pin 20. This locking pin 20 can be brought via the mounted on an outer side 7 of the door 6 lever assembly 21 in a corresponding position, so that the door 6 can be either opened or locked. The door 6 has on its inner side 8 a sealing device 12, which on the one hand to prevent the ingress of liquid and at the same time allows the door 6 in a closed state seamlessly on the outer surface 3 of the housing member 2 and rests. The sealing device 12 may consist of an absorbent and at the same time elastic material, which expands minimally when receiving liquid and thus closes any openings that may arise despite a resting of the door 6 on the outer housing surface 3. The door 6 is in the closed state on a in this embodiment of the outer housing surface 3 protruding - but not limited to - edge 13 of the housing opening. This edge 13 is preferably formed as a projecting bead of material, which is completely enclosed by the inside 8 of the door, so that an additional sealing function is provided due to the construction. The door 6 is articulated via a hinge arrangement 9 to the housing. In this case, the hinge arrangement is advantageously mounted so that in a closed state of the door, the hinge assembly 9 is located completely inside the housing 1. In this way, the hinge assembly 9 is protected from the extreme weather conditions. Fig. 3 shows a detail of the door 6 and an embodiment of the locking device 10. The locking system 10 is substantially formed by a longitudinally arranged in this embodiment, locking pin 20 which is mounted and supported on the inside 8 of the door 6. At the same time, the locking pin 20 is controllable in its position by a lever arrangement 21 from the outside. However, it would also be possible to move the position of the locking pin 20 by a corresponding electronic control. In the described embodiment, in a closed position of the door 6, the locking pin 20 is positioned such that a portion of the locking pin 20 engages with a wall portion 22 of the housing 1. The nature of the connection can be designed as desired and, for example, force and / or positive locking to lock the door accordingly. The hinge assembly 9 is essentially formed by two hinge parts 16 and 17. The first hinge part 16 is preferably mounted on an inner side 4 of the housing 1. The second hinge part 17 is fixed to the inside 8 of the door 6. Both hinge parts 16 and 17 are so interacted by a forced alignment that when pivoting both hinge parts 16, 17 about a rotational axis AB a first pivot position of the door 6 is achieved, which corresponds to a closed state of the housing, or a second pivot position of the door 6 can be achieved, which corresponds to an open state of the housing 1. In particular, the hinge assembly 9 has a movement stopper 18, which is - preferably automatically - with the door open in a position can be brought, which is referred to as a locking position. In this latching position of the movement stopper 18, the door is fixed in position by the catch and a folding of the door in a closed position is prevented in this way.

Fig. 4 shows an embodiment of the hinge assembly 9 with the hinge parts 16 and 17. The hinge assembly 9, which is designed as a hinge joint connection, has a movement stopper 18 with a movable locking pin 19 which is located in Fig. 4 in a position in which the movement stopper 18 is not engaged. If the door 6 is to be locked, then the locking pin 19 is folded together with the hinge part 17 in a corresponding position, so that the locking pin 19 with a part of the movement stopper 18 receives a latching connection. Preferably, the locking function of the movement stopper is triggered automatically, that is, the movement stopper 18 is placed during the opening of the door 6 in a corresponding locking position, so that an automatic closing of the door 6 is prevented. When closing the door 6, however, then the locking pin 19 must be folded accordingly to release the movement stopper 18 from its rest position.

FIG. 5 shows a detailed detail of the hinge arrangement 9 according to FIG. 4. In this embodiment, however, the movement stopper 18 with the folded-over latching pin 19 is in a latching position. The open door 6, not shown here, is fixed in position by the catch, so that the folding of the door 6 is prevented in a closed position. In this embodiment, however, it may also be advantageously provided to form the latching pin 19 in such a way that it already automatically falls into the latching position when the door 6 is opened.

Fig. 6 shows a view of the embodiment of the inside of the housing 1 according to the invention, wherein an inner surface 4 of a

Housing element 2 is shown in detail for a wind turbine. In particular, Fig. 6 shows fastening means 25, which serve on the one hand as a holder for the handle bar 24, not shown here, which are mounted on the outer surface 3 of the housing 1. On the other hand, the fastening means 25 have the function of mounting a mechanical connection and mounting between the housing 1 acting as a spinner and a turbine hub 40 shown in FIG. Due to this dual function of the fastener 25, the In particular, can be designed as a support system, additional fastening components are saved, which would otherwise be necessary.

Fig. 7 shows a detail of an embodiment of the fastening means 25 on the inside 4 of the housing 1. The fastening means 25 are formed as a support system with the end portions A and B. At the one end A and B of the support system brackets of the handle bracket 24 are mounted at the same time. The support system has in addition at its end portions A and B each have a fastening means 25 which consists of a carrier 25.1 and a patch on the carrier 25.1 mounting bracket 25.2. Each mounting arm 25.2 is in direct connection with a section-side end C and D of a handle bracket 24 which is held on the outer surface 3 of the housing member and protrudes. At the same time an integrated support member is provided as a hub suspension, which is connected to the outer housing 1 in this simple manner.

FIG. 8 shows a detail of the suspension system of FIG. 7 in a similar embodiment with a carrier 25.1. Fig. 8 shows in particular the principle of the suspension. At point E, the carrier 25.1 retains the turbine hub 40 and combines in a practical and efficient manner at the same time the functions of attachment of the handle bar 24 and mounting a housing element 2. The handle bar 24 are in this embodiment and in contrast to the embodiment shown in FIG a bracket holding member 26 is held, which serves as a guide member for a handle bracket 24, wherein the bracket holding member 26 is in communication with the housing 1 via the carrier 25.1. The head 26.1 of the bracket holding member 26 may also be rotatable about its own axis, so that the adjustment of the handle bracket 24 is facilitated on the outer surface of the housing. This is preferably, but not limited, achieved via a bolt-like screw 26.2 connecting the bracket holding member 26 to the housing. The bracket holding member 26 also satisfies the requirement for waterproofness when applied to the housing 1 is mounted. The embodiment shown in Figure 8 also shows a sealing device 26.3 mounted between the nacelle spinner and the nacelle housing. The sealing device 26.3 can be made of an elastic and / or rubber-like, lamellar material and protects the interior of the nacelle from penetrating liquid and / or moisture.

Fig. 9 shows an embodiment of the housing 1 with sealing device 27. The sealing device 27 consists of at least a first and second and preferably superimposed shroud rings 33, 34, which are each formed as outer, preferably cylindrically shaped shroud rings 33, 34 and in each case a sealing skirt 35 have. The shroud rings 33, 34 enclose the seam 31 as a collecting reservoir for accumulated liquid in such a way that during the rotation of the rotor blade 28 the accumulated liquid is collected by the sheathing ring 33, which is closer to the seam 31. In this case, the first, inner shroud ring 33 is fixedly connected to a housing element 2, wherein the second outer shroud ring 34 rotates with the rotor blade 28.

FIG. 10 shows a detailed view of the two shroud rings 33 and 34 with a closure device of the sealing device from FIG

Closure device consists of a first closure element 38 and a second closure element 39, which are formed in this illustrated embodiment with the two views A and B as a snap connection. This allows easy installation and maintenance of the shroud rings 34 and 35, even after the wind turbine has already been set up.

FIG. 11 shows an overall view of the housing of the wind turbine with the sealing device 27 and with the closure elements 38 and 39. The embodiment is identical to the illustrations of FIGS. 9 and 10. LIST OF REFERENCE NUMBERS

1 housing 21 lever arrangement

2 housing element 22 wall section

3 Outer surface of the 23 fixture

Housing element 24 handle

4 Inner surface of the 25 fastener

Housing element 25.1 carrier

5 Opening 25.2 Mounting arm

6 opening element / door 26 bracket holding element

7 Outside of the door 26.1 Head of the bracket holding element

8 Inside the door 26.2 Screw connection

9 Hinge assembly 26.3 Sealing device

10 locking system

11 inside of the housing member 27 sealing device

12 sealing device 28 rotor blade

13 edge of the housing opening 31 seam

14 housing opening 33 first, inner sheathing ring

15 seam 34 second, outer sheathing ring

16 First hinge part 35 Sealing skirt

17 second hinge part 38 first closure element

18 movement stop 39 second closure element

19 stop bolts 40 turbine hub

20 locking pin

Claims

claims

A housing (1) for a wind turbine for use as a spinner for a rotor of a wind turbine, comprising

- A housing member (2) having an outer surface (3) and an inner surface (4) and an opening (5) to get into the interior of the housing;

- A movable opening element (6) having an outer (7) and an inner side (8), characterized in that

- M interior of the housing (1) is provided a hinge arrangement (9) for articulating the opening element (6),

- which on the inside (8) of the opening element (6) and on the inside (11) of the housing element (2) is mounted,

- Wherein the hinge assembly (9) between the housing (1) and door (6) is mounted so that the door (6) relative to the housing opening (14) is located in a substantially parallel to the axis of rotation of the wind turbine, so that the door (6) is not exposed to the direct wind pressure direction when the wind turbine is turned in the wind.

2. housing (1) according to claim 1, characterized in that a

Locking system (10) is provided, that the opening element (2) of the housing (1) locks or unlocks by activation.

3. Housing (1) according to any one of the preceding claims, characterized in that on the inside of the door (6) a sealing device (12) is mounted, which in the closed position position of the door (6) having an edge (13) Completes housing opening (14), so that the interior of the housing is protected from external ingress of liquid and / or moisture.

4. housing (1) according to claim 3, characterized in that the sealing device (12) is made of an elastic and / or ansaugfähigem material.

5. Housing (1) according to one of the preceding claims, characterized in that the housing (1) consists of, preferably component-like or similar components, which are modularly assembled into a housing unit.

6. housing (1) according to one of the preceding claims, characterized in that the shape of the door (6) is formed such that it covers with a portion of the outer surface (3) of the housing (1) and a positive connection enters, so that penetration of liquid and / or moisture at an interface (15) between the outer housing surface (3) and door (6) is prevented or at least minimized and a nearly complete water-tightness of the housing (1) is achieved.

7. housing (1) according to one of the preceding claims, characterized in that the hinge assembly (9) has a first hinge part (16) which is connected to the inside (4) of the housing (1), and a second, to the hinged part (17) fixed to the inside (8) of the door (6), wherein both hinged parts (16, 17) interact with each other by forced alignment such that upon pivoting of both hinged parts (16, 17) about a rotation axis AB first pivot position of the door (6) is achieved, which corresponds to a closed state of the housing (1), or a second pivot position of the door (6) can be achieved, which corresponds to an open state of the housing (1).

8. Housing (1) according to one of the preceding claims, characterized in that the hinge arrangement (9) has a movement stopper (18) which can be brought from a first position to a second position when the pivot position of the door (6) is open and the engages such that the latching force of the movement stopper (18) is not surmountable when the movement stopper (18) is in locking position, so that the pivot positions of the door (6) are fixed in position by the latch and the door (6) in a closed position is prevented.

9. housing (1) according to one of the preceding claims, characterized in that when the door (6) of the movement stopper (18) automatically engages in a corresponding latching position, which locks the movement of the door (6).

10. Housing (1) according to one of the preceding claims, characterized in that the housing (1) has at least one holding device (23), which is designed as a handle (24), which is preferably sectionally on the outer surface (3) of Housing (1) is mounted to facilitate access to the housing entrance and that for the attachment of the handle strap (24) on the surface of the housing (1) designed as a support system structure fastening means (25) are provided, which with the inner surface (4) of the housing (1) are operatively engaged such that the handle structure supports the grips (24) on the outer surface (3) of the housing (1) and the housing of the turbine hub (40).

11. Housing (1) according to claim 10, characterized in that the

Fastening means (25) are designed as screw, adhesive or welded joints.

12. Wind turbine with a tower rotatably mounted on a nacelle and a rotor with a hub (40) and at least one rotor blade (28), characterized in that the hub (40) surrounded by a housing (1) according to one of the preceding claims is.